/*
 * Copyright 2017-2018 Allegro.pl
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import * as React from "react";
import "./heatmap-hover-indicator.scss";
import { HoverPosition } from "./utils/get-hover-position";

interface HeatmapHoverIndicator {
  tileSize: number;
  tileGap: number;
  hoverPosition: HoverPosition;
}

export const HeatmapHoverIndicator: React.SFC<HeatmapHoverIndicator> = ({ tileGap, tileSize, hoverPosition }) => {
  const { column, row } = hoverPosition;
  const top = row * tileSize;
  const left = column * tileSize + tileGap;
  const position: React.CSSProperties = {
    top: `${top}px`,
    left: `${left}px`
  };
  return <div className="heatmap-hover-indicator" style={position} />;
};
